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3 commits

Author SHA1 Message Date
Charles Strahan 9bd8dffd77 require gnused for all prefetch scripts 2014-06-23 01:25:40 -04:00
Eelco Dolstra ea36f3b868 fetchFromGitHub: Use .tar.gz instead of .zip 
Also clean up the name attribute of fetchzip derivations a bit.
 2014-05-09 15:53:44 +02:00
Eelco Dolstra c8df888858 Add a function "fetchzip" 
This function downloads and unpacks a file in one fixed-output
derivation. This is primarily useful for dynamically generated zip
files, such as GitHub's /archive URLs, where the unpacked content of
the zip file doesn't change, but the zip file itself may (e.g. due to
minor changes in the compression algorithm, or changes in timestamps).

Fetchzip is implemented by extending fetchurl with a "postFetch" hook
that is executed after the file has been downloaded. This hook can
thus perform arbitrary checks or transformations on the downloaded
file.
 2014-05-08 15:30:17 +02:00